Pre-wired rig interface cable for the MFJ-929 and MFJ-998. While the MFJ-5114Y3 works with the FT-2000, the FT-2000 also has a TX REQ input that can be used. If you prefer to use the TX REQ input, the MFJ-5114Y4 interface provides control (but not power) between the Yaesu FT-2000 and FT-2000D radios and the MFJ automatic tuner. This cable plugs into the TX REQ RCA jack on the rear panel of these Yaesu radios.